Five Pack Heavy Duty M35 Cobalt Drill Bit Set 1/8 X 12 Inch Extra Long Extension Bits For Deep Hole Drilling In Stainless Steel Aluminum Plastic Wood Aviation And Metal Shops

M35 cobalt extra long drill bits for deep hole metal work
✔️ 1/8 inch diameter by 12 inch total length five piece pack set

This five pack of heavy duty cobalt extensions cuts through tough stainless steel, cast iron, and thick aluminum without bending. Machine operators and hobbyists rely on them for precision deep hole drilling in cramped workshop bays and factory floors.

✅ Fully ground spiral flutes remove chips fast to keep bits cool
✅ Five percent cobalt alloy boosts wear resistance for harsh metals
✅ One hundred thirty five degree split point stops wandering on contact
✅ Straight shank design fits standard chuck adapters on most rotary tools

💡 What advantages do m35 cobalt drill bits offer over standard hss sets for deep metal cutting? These extras prove mighty handy for shop floor jobs since they hold an edge way longer under heavy grinding. - Tough cobalt reinforced steel stands up to intense friction when punching through hardened plates - Long reach shafts clear blind holes fast without constant hammering or chipping - Ground geometry channels shavings away smoothly so feed pressure stays light and consistent. - Split angle tips bite right into surface marks so layout punches never get wasted.

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